JO ANN ANDREA GIACONI MD
NPI 1639182223
Ophthalmology in Los Angeles, CA
About Jo Ann Andrea Giaconi Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
JO ANN ANDREA GIACONI MD (NPI 1639182223) is an individual ophthalmology provider in Los Angeles, California, licensed in California (A69916) and active in the NPI registry since August 2006. She is enrolled in Medicare PECOS and is a graduate of Columbia University College Of Physicians And Surgeons (1998).
NPPES Registry Identity
Specialties & Licenses
Other Identifiers 2
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare and accepts Medicare assignment
Jo Ann Andrea Giaconi Md is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.
Medicare Billing Reassignments
2Medicare enrollment records show Jo Ann Giaconi reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Los Angeles, CA 90095
- Reassigned Medicare billing, California enrollment
- 123 clinicians in this Medicare group
Santa Monica, CA 90405
- Reassigned Medicare billing, California enrollment
- 1,939 clinicians in this Medicare group
Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
Areas of Expertise CMS Part B claims 13
Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.
Physician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 90095 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Medicare Quality Performance CMS QPP · MIPS
Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.
Other Providers at the Same Location NPPES
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
Frequently Asked Questions NPPES & CMS
Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.
What is Jo Ann Giaconi's NPI number?
The NPI number for Jo Ann Giaconi is 1639182223. It was assigned to this individual provider in the NPPES registry on August 14, 2006.
Where is Jo Ann Giaconi located?
Jo Ann Giaconi practices at 100 Stein Plz Ste 2-235, Los Angeles, CA 90095. The listed phone number is (310) 794-9442.
What is Jo Ann Giaconi's specialty?
The primary specialty registered for this NPI is Ophthalmology with taxonomy code 207W00000X.
Is Jo Ann Giaconi enrolled in Medicare?
Yes. Jo Ann Giaconi is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.
Which organizations bill Medicare for Jo Ann Giaconi's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Jo Ann Giaconi reassigns Medicare benefits to 2 organizations: Jules Stein Eye Institute Medical Group (Los Angeles, CA) and County Of Los Angeles (Santa Monica, CA). Each reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Jo Ann Giaconi's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
When was this NPI record last updated?
The NPPES record for Jo Ann Giaconi was last updated on January 15, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 21 months ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.
# Jo Ann Andrea Giaconi, MD · NPI 1639182223
Ophthalmology physician in Los Angeles, California. Individual provider, active in the CMS NPPES registry since August 14, 2006.
## Identity
- **NPI:** 1639182223 (Entity type: Individual)
- **Enumerated:** August 14, 2006
- **Primary specialty:** Ophthalmology · taxonomy 207W00000X
- **State license:** A69916 (California)
- **Sole proprietor:** No
## Practice location
- **Address:** 100 STEIN PLZ STE 2-235, Los Angeles, CA 90095-7065
- **Phone:** (310) 794-9442 · **Fax:** (310) 794-5541
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** 2 organizations under Medicare reassignment (form CMS-855R): Jules Stein Eye Institute Medical Group (NPI 1326006966, Los Angeles, CA); County Of Los Angeles (NPI 1235323080, Santa Monica, CA) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Columbia University College Of Physicians And Surgeons, class of 1998
## Record status
- **NPPES last updated:** January 15, 2025
- **Other identifiers:** Medicaid 00A699160 (CA); Other M050376 (CA)
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Source: [NPI Profile](https://npiprofile.com/npi/1639182223) · Data from the CMS NPPES public registry.